With one injection, ProHeart 6 (moxidectin) protects dogs from heartworm infection for 6 full months. And, because it can only be administered bu your veterinarian or a certified staff member at your clinic, ProHeart 6 takes the monthly responsibility off you and leaves it to another pro - your veterinarian.

You'll know your dog is protected. And you won't have to worry - about getting refills, giving monthly doses or, above all, about heartworm disease for 6 full months.

One missed or delayed dose could lead to infection.

Heartworm disease has been diagnosed in all 50 states, and the disease is spreading each year. In many areas, it is transmitted year-round. In high-risk areas, even one month without treatment could mean a heartworm-positive diagnosis.

Take this to heart.

Heartworm disease is a serious, potentially fatal illness transmitted to dogs by infected mosquitoes. Dogs in areas with high levels of mosquitoes are especially at risk. No matter the time of year. No matter whether they are indoors or out.